
For more information, please contact the
Army Environmental Hotline
E-mail: Environmental Hotline
Phone: 800-USA-3845 (800-327-3845)

The calibration portion of the test site consists of at least nineteen (19) lanes. Seventeen (17) lanes contain six identical munitions buried in various orientations and at three different depths. One lane contains four (4) steel spheres buried at a depth of 0.5 to 2 meters. Another lane contains two (2) each (30.48 cm and 60.96 cm diameter) circular steel plates buried at 30.48 cm and 91.44 cm respectively. A third lane contains 15 cm and 30 cm diameter copper wire hoops (12, 16, 18 and 20 gauge) buried at 0.3 meters depth. The wire hoop gives a standard signature to compare to the signature the detection instrument is receiving. If an installation has site-specific munitions that are not part of the Standardized Target, extra calibration lanes can be added.
Munitions generally rectangular in shape (aspect ratio not equal to one) are placed into the ground in six (6) orientations and at three (3) different depths. Munitions generally round in shape (aspect ratio of one) are buried at three different depths. The first and last opportunity of each Calibration Lane contains a 3.6 kg steel ball (diameter = 8.9cm) buried at 15 cm to provide a uniform signature that can be identified when looking at raw data.
Ground Truth for YPG Calibration Grid (191kb XLS)
Repository Database Calibration Ordnance (22kb XLS)